Moderate severityNVD Advisory· Published Feb 19, 2026· Updated Feb 20, 2026
Go Ethereum affected by DoS via malicious p2p message
CVE-2026-26313
Description
go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.17.0, an attacker can cause high memory usage by sending a specially-crafted p2p message. The issue is resolved in the v1.17.0 release.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/ethereum/go-ethereumGo | < 1.17.0 | 1.17.0 |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/ethereum/go-ethereumpkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 1.17.0+ 1 more
- (no CPE)range: < 1.17.0
- (no CPE)range: < 0.0.20260226T182644-150000.1.149.1
- Range: < 1.17.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-689v-6xwf-5jf3ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-26313ghsaADVISORY
- github.com/ethereum/go-ethereum/releases/tag/v1.17.0ghsax_refsource_MISCWEB
- github.com/ethereum/go-ethereum/security/advisories/GHSA-689v-6xwf-5jf3ghsax_refsource_CONFIRMWEB
- pkg.go.dev/vuln/GO-2026-4508ghsaWEB
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